Hi-glad you’re researching everything now. I didn’t in the beginning but I quickly learned. Also, it’s good that you get second and third opinions; a good dr will never be offended by that. Do consider ablation; it might just solve the problem.
My experience has been that they will always keep you a day or two in the hospital while titrating any antiarrhythmic. Also, amiodarone is supposedly a drug of last resort.
Sorry again about the lung scarring and glad some of it could be reversed.
Let us know how the ablation goes if you decide to do it.